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Differential D26137 Diff 85673 head/sys/dev/if_wg/include/crypto/blake2s.h

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head/sys/dev/if_wg/include/crypto/blake2s.h

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/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/*
* Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
*/
#include <sys/types.h>
#ifndef _BLAKE2S_H_
#define _BLAKE2S_H_
enum blake2s_lengths {
BLAKE2S_BLOCK_SIZE = 64,
BLAKE2S_HASH_SIZE = 32,
BLAKE2S_KEY_SIZE = 32
};
struct blake2s_state {
uint32_t h[8];
uint32_t t[2];
uint32_t f[2];
uint8_t buf[BLAKE2S_BLOCK_SIZE];
size_t buflen;
uint8_t last_node;
};
void blake2s_init(struct blake2s_state *state, const size_t outlen);
void blake2s_init_key(struct blake2s_state *state, const size_t outlen,
const void *key, const size_t keylen);
void blake2s_update(struct blake2s_state *state, const uint8_t *in, size_t inlen);
void blake2s_final(struct blake2s_state *state, uint8_t *out, const size_t outlen);
static inline void blake2s(uint8_t *out, const uint8_t *in, const uint8_t *key,
const size_t outlen, const size_t inlen,
const size_t keylen)
{
struct blake2s_state state;
#ifdef __linux___
WARN_ON(IS_ENABLED(DEBUG) && ((!in && inlen > 0) || !out || !outlen ||
outlen > BLAKE2S_HASH_SIZE || keylen > BLAKE2S_KEY_SIZE ||
(!key && keylen)));
#endif
if (keylen)
blake2s_init_key(&state, outlen, key, keylen);
else
blake2s_init(&state, outlen);
blake2s_update(&state, in, inlen);
blake2s_final(&state, out, outlen);
}
void blake2s_hmac(uint8_t *out, const uint8_t *in, const uint8_t *key,
const size_t outlen, const size_t inlen, const size_t keylen);
#endif /* _BLAKE2S_H_ */